I think something is wrong with live update

I run live update every morning as soon as I connect to the internet,  this morning I noticed 6 updates, strangely the last several days it has always been 6 updates, but this morning I happened to notice that the file size of the updates said zero bytes. Now I need some help to check I have actually been recieving updates, I am using Norton Internet Security 2010  version 17.8.0.5